The husband trap (The trap trilogy #1)

Here comes the substitute bride.
Violet Branford has
always longed for the passionate embrace of Adrian Winter,
the wealthy Duke of Raeburn. Problem is, he's set to marry
Violet's vivacious, more socially polished lookalike twin
sister, Jeannette. But when Jeannette refuses to go
through with the ceremony mere minutes before it is to
begin, soft-spoken Violet finds herself walking down the
aisle and taking vows in her sister's place. Soon shy Violet
is a high-society wife, trying to keep her real identity a
secret while living out the fantasies of her wildest dreams.
Adrian thinks he knows exactly what he's gotten himself
into: Jeannette may be flighty and, well, a bit self-involved,
but she's the picture-perfect wife to carry on the Winter
name. Yet this marriage of convenience brings the groom
more than he bargained for when he finds his sweet,
innocent wife surprising him at every turn. And though he
never planned on true love, Adrian is definitely in danger of
losing his heart.

Drama